Will you please confirm that you want a KN700 manual and NOT a KN7000?
I still have one of the parts that used to come with the set of manuals for the various keyboards and it is a dual one for SX-KN600/SX-KN800. This is NOT the manual but is the blue type which included the Music Director Guide, Sound variations, Tone directory etc., and also the white illustration of the actual keyboard again SXKN600 and SXKN800.
You are welcome to this if you want it, or indeed anyone else who would like it if not you. Good luck with your search. Joan